2.4MM CS X 20.8MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.4 x 20.8 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H2.4X20.8
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Product Specification

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H2.4X20.8 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 20.8 mm (0.819 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 25.6 mm (1.01 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. Source specification: Metric O-RING, JIS P21.

It resists hydraulic fluids, petroleum-based oils, and propane and butane. Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or ketones are present.

It sees regular use in construction equipment, fluid power, and agricultural equipment.

Reference part number H2.4X20.8 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Item
H2.4X20.8
Description
2.4MM CS X 20.8MM ID BLACK BUNA 70D
Actual Outside Diameter
25.6 mm (1.01 inch)
Actual Cross Section
2.4 mm (0.094 inch)
Actual Inside Diameter
20.8 mm (0.819 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity